diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index 1df89dd..0000000
Binary files a/.DS_Store and /dev/null differ
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e43b0f9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.DS_Store
diff --git a/HTML_GENERATING_CODE/.DS_Store b/HTML_GENERATING_CODE/.DS_Store
deleted file mode 100644
index 1da7f2b..0000000
Binary files a/HTML_GENERATING_CODE/.DS_Store and /dev/null differ
diff --git a/matrices/.DS_Store b/matrices/.DS_Store
deleted file mode 100644
index 5008ddf..0000000
Binary files a/matrices/.DS_Store and /dev/null differ
diff --git a/tactics/.DS_Store b/tactics/.DS_Store
deleted file mode 100644
index 5008ddf..0000000
Binary files a/tactics/.DS_Store and /dev/null differ
diff --git a/techniques/.DS_Store b/techniques/.DS_Store
deleted file mode 100644
index 5008ddf..0000000
Binary files a/techniques/.DS_Store and /dev/null differ